Bluetooth signal receiving method and device using improved packet detection and symbol timing acquisition

a technology which is applied in the direction of synchronisation signal speed/phase control, wireless commuication services, phase-modulated carrier systems, etc., can solve the problems of inability to accurately perform all offset compensation calculations, and the gain attributable to post-processing calculations cannot be expected, so as to increase the accuracy of packet detection and symbol timing acquisition, and improve the effect of packet detection performan

a technology which is applied in the direction of synchronisation signal speed/phase control, wireless commuication services, phase-modulated carrier systems, etc., can solve the problems of inability to accurately perform all offset compensation calculations, and the gain attributable to post-processing calculations cannot be expected, so as to increase the accuracy of packet detection and symbol timing acquisition, and improve the effect of packet detection performan

US9954701B2Active Publication Date: 2018-04-24ABOV SEMICON
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  • Bluetooth signal receiving method and device using improved packet detection and symbol timing acquisition
  • Bluetooth signal receiving method and device using improved packet detection and symbol timing acquisition
  • Bluetooth signal receiving method and device using improved packet detection and symbol timing acquisition

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Embodiment Construction

[0047]Embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, a detailed description of a related well-known component or function will be omitted when it is determined that the detailed description may make the gist of the present invention obscure.

[0048]The prevent invention is not limited to the embodiments. Throughout the accompanying drawings, the same reference symbols designate the same components.

[0049]FIG. 4 is a diagram showing an example of the waveform of a preamble 210 having passed through the frequency demodulator of a Bluetooth receiver.

[0050]As described above, in the preamble interval 210, when the first transmission bit of the access address interval 220 is โ€œ1,โ€ the signal โ€œ01010101bโ€ is transmitted. When the first transmission bit of the access address interval 220โ€œ0,โ€ the signal โ€œ10101010bโ€ is transmitted.

[0051]In this case, the signal of the preamble 210...

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Abstract

Disclosed herein are a Bluetooth signal receiving device and method for receiving a Bluetooth signal. The Bluetooth signal receiving device includes a discriminator circuit and a correlator circuit. The discriminator circuit generates a baseband signal by performing frequency shift demodulation on a received signal, and generates a frequency proportion signal having a value proportional to the frequency of the baseband signal. The correlator circuit detects a packet assigned to the Bluetooth signal receiving device by comparing the frequency proportion signal with an access address received from a link layer. The Bluetooth signal receiving device may detect a packet, assigned to the Bluetooth signal receiving device itself, by using access address information of a link layer.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims under 35 U.S.C. ยง 119(a) the benefit of Korean Patent Application No. 10-2015-0189879 filed on Dec. 30, 2015, which is incorporated herein by reference.TECHNICAL FIELD[0002]The present invention relates to technology for packet detection and symbol timing acquisition for a Bluetooth Smart receiving device, and more particularly to a device and method for constructing a high-sensitivity receiver that smoothly operates in a low signal-to-noise power ratio region through cooperation between a physical layer and a link layer in a Bluetooth Smart device.[0003]The present invention was derived from the research conducted as a part of the Industrial Core Technology Development Project sponsored by the Korean Ministry of Trade, Industry and Energy and the Korea Institute of Industrial Technology Evaluation and Planning [Project Management Number: 10052626; Project Name: Development of BLE (Bluetooth Low-Energy) v4.2 Support...

Claims

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Application Information

Patent Timeline
24 Apr 2018
Publication
US9954701B2
IPC
H03D3/00; H04W8/26; H04L27/148; H04L27/156; H04L27/14; H04L27/22; H04W4/00; H04W4/80
CPC
H04L27/148; H04L27/156; H04W8/26; H04W4/80; H04L27/22; H04L7/042; H04L7/10
Inventors
CHU, SANG YOUNG; MOON, KI TAE